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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A193526 Sum of even divisors of sopf(n).

Table of values

n a(n)
1 0
2 2
3 0
4 2
5 0
6 0
7 0
8 2
9 0
10 0
11 0
12 0
13 0
14 0
15 14
16 2
17 0
18 0
19 0
20 0
21 12
22 0
23 0
24 0
25 0
26 0
27 0
28 0
29 0
30 12
31 0
32 2
33 16
34 0
35 24
36 0
37 0
38 0
39 30
40 0
41 0
42 24
43 0
44 0
45 14
46 0
47 0
48 0
49 0
50 0
51 36
52 0
53 0
54 0
55 30
56 0
57 24
58 0
59 0
60 12
61 0
62 0
63 12
64 2
65 26
66 30
67 0
68 0
69 28
70 16
71 0
72 0
73 0
74 0
75 14
76 0
77 26
78 26
79 0
80 0

List of values

[0, 2, 0, 2, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 14, 2, 0, 0, 0, 0, 12, 0, 0, 0, 0, 0, 0, 0, 0, 12, 0, 2, 16, 0, 24, 0, 0, 0, 30, 0, 0, 24, 0, 0, 14, 0, 0, 0, 0, 0, 36, 0, 0, 0, 30, 0, 24, 0, 0, 12, 0, 0, 12, 2, 26, 30, 0, 0, 28, 16, 0, 0, 0, 0, 14, 0, 26, 26, 0, 0]

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